#!/bin/bash
#
# dpkg-deb-nodot ... Build DEB packages while ignore all hidden files.
#
# Copyright (c) 2009, KennyTM~
# All rights reserved.
# 
# Redistribution and use in source and binary forms, with or without modification,
# are permitted provided that the following conditions are met:
# 
# * Redistributions of source code must retain the above copyright notice, this
#   list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice, 
#   this list of conditions and the following disclaimer in the documentation
#   and/or other materials provided with the distribution.
# * Neither the name of the KennyTM~ nor the names of its contributors may be
#   used to endorse or promote products derived from this software without
#   specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

if [[ $# == 0 ]]; then
	echo "Construct DEB package while ignoring all hidden (e.g. .svn, ._DS_STORE) files.";
	echo "Usage: dpkg-deb-nodot <directory> [<deb-base-name>]";
else
	export COPYFILE_DISABLE=true
	export COPY_EXTENDED_ATTRIBUTES_DISABLE=true

	SrcDir=$1
	DebFile=$1
	DebVersion=0
	This=$PWD
	if [[ $# > 1 ]]; then
		DebFile=$2
	fi

	TmpDirPrefix=`echo $DebFile | sed 's|/|_|g'`;
	TmpDir=`mktemp -d /tmp/$TmpDirPrefix.XXXXXX`;

	cd $SrcDir/DEBIAN;
		FirstLine=`head -1 control`;
		if expr "$FirstLine" : "[^:]*:.*"; then
			tar --exclude=".*" -czf $TmpDir/control.tar.gz *;
			# extract version from control.
			DebVersion=`sed -n -E 's/^Version: *([-.[:alnum:]]+)/\1/p' control`;
		else
			# the control file is invalid. just quit.
			echo "Error: Invalid control file. Quitting.";
			cd $OLDPWD;
			rmdir $TmpDir;
			exit;
		fi
	cd $OLDPWD;

	cd $SrcDir;
		tar --exclude=".*" --exclude=DEBIAN -czf $TmpDir/data.tar.gz *;
	cd $OLDPWD;

	cd $TmpDir;
		echo "2.0" > debian-binary;
		ar r $This/$DebFile-$DebVersion.deb debian-binary control.tar.gz data.tar.gz;
	cd $OLDPWD;

	rm -r $TmpDir;
fi
